Protective socket



S. L. ADELSUN.

PROTECTIVE SOCKET.

APPLICATION FILED MAY 9, 1919.

9848620, Patented Aug. '3, 1920.

r l i l vENToR famue( dde/$02@ AT ORNEY SAMUEL L. annnson, ory new Yoan. 1v. Y.

K PROTECTIVE SOCKET.

Speccaton ofiIietters Patent.

Patented aug. a, 192e.

Application fiiea May 9, 1919. serial ivo. 295,830.

To all whom t may concern Be it known that vI, SAMUEL L. ADELsoN, a citizen of the United States of America, residing at New York city, county and State of New York, have invented certain new and useful Improvements in Protective Sockets, of which the following is a full,

clear, and exact description.

This invention relates to a device for the prevention of the removal of electric light bulbs excepting by those authorized to do f so; in other words, my improved device is intended to4 prevent the stealing offsuch bulbs. To carry out my invention,I` provide an auxiliary socket to receive a bulb, arranged to engage a standard socket, and means toprevent the manipulation orrotation of the socket after it has been connectediip for use. y

` I'will now describe my invention in detail, and refer to the accompanying drawing,

' forming part of this specification, wherein:

' Figure 1 is a sectional view of my inven- Y tion illustrated as applied to a standard of my invention; and

socket, said socket being illustratedpartly in section;

Y Fig. 2 is an elevation on a reduced scale; Fig. 3 is asimilar View lillustrating the parts positioned for the removal of a bulb; Figs. 1, 5, 6 and 7 are detail views ofparts Fig. 8 is a sectional plan view, the section being taken on a line 8--8 in Fig. 1.

In the drawing a standard socket is indicated by 9 having the usual threaded bushing 1.0,iiis'ulating sleeve 11 and casing-member 12. One of the elements ofmy invention consists of a threaded plug 13 to engage the bushing 10 of the socket 9, said plug 13carrying heads 141- aiid 15 of insulating material, through which a conducting post 16 passes. Be-

i tween the heads 111 and 15, I place asepalrator 17 and between the head 15 of the plug and head 18 of the post`16, I 'also place a separator 19. A further elementof the'invention consists of a threaded sleeve 2O to engage the plug 13; said sleeve or socket member carries4 the bulb indicated by 21. The bulb and sleeve 20 preferably tightly eiigage'eachrother for a purpose to bede scribed. In other wo`rds,"there will notbe 'any looseness upon the part ofthev engagement of saidy parts, and hence thesleeve 2() will have to be lheld while the bulb is being removed or applied thereto. The sleeve 2O is' preferably provided with stops22 to engage the plug end of the bulbito limit the inward position of same. The sleeve 20 carries a head or flange23 of insulating material, for a purpose to be described, said head or flange being knurled at the peripliery thereof, as indicated by 24. The sleeve or supplemental socket 20 is iiiclosed by a casing 25secured at its upper end to a head 26, which in turn is secured to the sleeve 13 in any desirable manner, said casing being secured to said head byscrews 27 or otherwise. The casing 25 Ais insulated from sleeve or socket 20 by means ofa lining 28 of insulating material. rIhe casing 25 and lining 28 are provided with aliningopenings 29 and`30 large enoughfor the passage of the tips of the lingers therethrough.- The device also includes an outer casing 31, the function "of which is to cover openings 29 and 30 after a bulb has been installed to pre; vent tlie removal of the bulb. To retain the outer casing 31 in position to cover the openings 29 and 30, I provide a channel-ring 32 which, in this instance, is split and secured to the casing portion of the socket *.9 byl a binding-screw 33a. After the outer casing `the outer casing cannot be moved. `The screw 33a will be specially made, requiring a special instrument vto operate same, and as therer are numerous devices, of this nature, I

have not given a detailed description lor illustration of same.k w

l To assemble the device, the supplemental socket or sleeve 2O willbel placed in 'thecas ing 25, the insulating lining 2,8 having been previously placedl insaid'casing.` The cas` ing 25 will new be slipped over end of plug 13 and secured to the @ange26 carried by said plug. Thisunitvwill now be applied to the socket sleeve 10,01*` in' other words, the

said sleeve as far as it will go. Theouter casingv31 `may now be Vapplied or slipped over inner casing 25. The openings 429, 30

upper end of plug' 13 will be screwed into and 41 will now'be caused to aline and the jflange 23 grasped by the `iingers to hold same r while a bulb` is bein applied to the` supplemental socket 20. fter the ybulb has been applied,`tlie socketv 2O ywill be moved up to engage `plug V13. `Afterthe plug has been screwed up farfenough to cause the bulb to make contact with the conductor 16 the outer sleeve 31 can be secured to ring 32, causing opening 411 to 'be moved out of alinement. The-casing will be deep enoughto provide a space 38, after it has been positioned on sleeve 13, vbetween its shoulder'39 and lower edge'illof the plug 13, lslightly deeper than the thickness of the head 23.

lt will be seen that the casing 25 is reduced in diameter to form a neck 42 slightly larger than the supplemental socket 20, but smaller than thebody of the sleeve, thereby producing the said shoulder 39. The head 23 of the socket 2() is slightly smaller than the body of its casing, but larger than the neck 42; hence said socket 2O cannot be removed i from the casing when said casing'is inwranged to have stalled. The socket 20 may be unscrewed from sleeve 13 to the dotted line position illustrated in Fig. 1, but the bulb cannot be removed therefrom because the head 23 cannot be grasped, as the openings L11,29-

and 30 are not in ali-nement. The bulb 21 will lit the socket 20 tight enough to prevent its removal unless the head 23 is held. lf A the head is not held, the vbulb and its ,socketwill-rotate together. To remove the bulb from the socket 20, the screw 33- will be unscrewed to release the casing 31, which can be lowered to cause openings 11, 29 and V30 to aline, after which head 23 can be held and the bulb removed. Should the socket 20 be unscrewed at any time, the head 23 will drop upon shoulderBS, hence is free to rotate without resistance. When outer casing is inposition, the inner `casing 25 cannot be removed, asis evident from an inspection of Fig. 1. Theouter casing 31 prevents the entire device from being manipulated for the purpose of separation.

Having described my invention, what l' claim is: i y

. l. In combination witha standard socket for electric light bulbs, a plug to engagethe threaded bushing of saidlsocket, a casing engaging said plug intermediate the ends thereof, a threaded sleeve engaging that portion of the plug which projects into said casing arrangedto have screwed into the lower'end thereof the threaded end of an electric light bulb, said casing being provided with openings for thepassageof the lingers to grasp said threaded sleeve to .hold same while a bulb is being applied tovor detached therefrom and means carried by the standard socket to cover said opening to Y prevent'the detachment of a bulb.A

2.(In combination with a standard socket `for electric light bulbs, a plug to engage said socket, a sleeve to engage said plug, ar-

screwed thereinto the threaded end of an electric light bulb, means to cause the threads of the bulb and sleeve l nto jam to produce a tight fit, a casing inclosing said sleevehaving anv opening for` 3. ln combination with a standard socket for electric light bulbs, a plug to engage said socket, a sleeve to engage said plug, arranged to have screwed `thereinto the threaded end of an electric light bulb, means to cause the threads of thebulb and sleeve to to produce a tight fit, a casing inclosingl said sleeve having an opening for the passage ofthe lingers to grasp said sleeve to prevent the rotation of same while a bulb is being applied to or detachedtherefrom, an outer casing applied to the casing iirst named, having an opening to .aline with the opening in the casing :[irst named, arranged to be moved to cause its opening to be carried out of alinement with the opening in the casing first named, and means to lock the outer casing to the socket.

Lhln combination with a standard socket for electric light bulbs, a plug to engage saidsocket,a sleeve to engage said`V plug arranged to have screwed -thereinto the threaded end of an electric light bulb, means to cause the threads of the bulb and sleeve to jam to produce a tight fit, a casing inclosing said sleeve` having an opening for the passage, of the fingers to grasp said sleeve to prevent the rotation of same while a bulb is being applied to or detached therefrom, an outer casing applied to the casing `first named, having an opening to aline withthe opening Vin the casing rstnamed,

i rarranged to be moved to cause its opening to be carried out of alinement with the openingin the casing {irst named, a channeled ring carried by the socket, and a screw car- Vried by the outer casing to engage the channel in said ring. Y i Y 5. In Vcombination with aV standard socket for electric light bulbs, a plug to engage the threaded bushing thereof, a head engaging said plug intermediate the ends thereof,v a sleeve engaging that portion of the plug which ,projects through said head, arranged to receive an electric light bulb, a casing secured at one end thereof to said head, said casing being reduced in diameter throughouta portion of its length to provide a neck slightly larger indiameterfthan said sleeve, a flange carried by said sleeve located within the larger part ofthe casing which incloses Y ythe sleeve, said flange being larger in'diameter thansaid neck, said casingA being provided with' openings for'the passage of the fingers to grasp the flange carried by said sleeve, a movable outer casing covering -the'larger part of the inner casing and arranged to engage same, said outer casing being provided with openingsto aline with the openings in the inner oasing, said openings being out of alinement excepting When a bulb is to be applied or removed7 and means to look the outer casing to the socket.

6. In combination With a standard bulbsocket, a plug to engage the threaded bushing thereof, a threaded sleeve to engage the threaded end of the bulb removably supported thereby, a casing inolosing said sleeve 10 and having la shoulder, and a lange carried Signed at New York city, N. Y., this 8 day of May, 1919.

SAMUEL L. ADELSON.k

Witnesses:

MAURICE BLOCK, EDWARD A. JARVIS. 

